PaddleOCR/ppocr/modeling/losses/cls_loss.py

34 lines
1.2 KiB
Python
Executable File

# copyright (c) 2019 PaddlePaddle Authors. All Rights Reserve.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import paddle.fluid as fluid
class ClsLoss(object):
def __init__(self, params):
super(ClsLoss, self).__init__()
self.loss_func = fluid.layers.cross_entropy
def __call__(self, predicts, labels):
predict = predicts['predict']
label = labels['label']
# softmax_out = fluid.layers.softmax(predict, use_cudnn=False)
cost = fluid.layers.cross_entropy(input=predict, label=label)
sum_cost = fluid.layers.mean(cost)
return sum_cost